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Growth And Pigment Production Of Pseudomonas Janthina, Harry F. Watt

Proceedings of the Iowa Academy of Science

The study here presented was undertaken to determine the growth characters of Pseudomonas janthina and the relations between color production and composition of medium.

Program, Iowa State Normal School, Fall Term, 1903, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

Program, Iowa State Normal School, Summer Term, 1903, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

Commencement, June 10, 1903, Iowa State Normal School

UNI Commencement Programs

Information relating to events associated with commencement ceremonies at the Iowa State Normal School.

College Catalog And Circular 1902-1903, Iowa State Normal School

UNI Programs and Courses Catalogs

Table of Contents:

State Board of Control ... 2
Calendar for 1903-1904 ... 3
Faculty 1902-1903 ... 5
Faculty Organization ... 12
Equipment - Buildings ... 14
Rules and Regulations of the Board of Trustees ... 19
Faculty Regulations and Directions ... 24
Requirements of the Courses of Study ... 27
Elementary Division ... 29
High School Graduate Division ... 39
Professional Courses of Study ... 52
Primary Teachers' Courses ... 57
General Directions and Regulations Concerning Classification ... 67
Expenses and Fees ... 73
Boarding and Lodging ... 80
The Course of Study ... 84
Register of Students 1902-1903 …

Program, Iowa State Normal School, Spring Term, 1903, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Stereoscopic Projection In Natural Colors, C. F. Lorenz

Proceedings of the Iowa Academy of Science

The projection of pictures on a screen in such a way that they shall show relief, like that given by a stereoscope, has been accomplished by two methods, one of which depends on the use of polarized light, and the other on the use of color-filters. The following is an account of a modification of the latter method, which enables us to see the projected picture in relief, and at the same time in the original colors. A signal lantern is used.

The Action Of Sodium Thiosulphate Solutions On Certain Silver Salts, W. M. Barr

Proceedings of the Iowa Academy of Science

The following work was undertaken at the suggestion of Dr. W. S. Hendrixson, to whom I am indebted for advice and assistance in the work. The solvent action of the thiosulphates on the halides of silver has long been known, and the fact is almost daily turned to account in the laboratory, and though the reaction has been quantitatively studied to some extent, an examination of the literature shows that no very satisfactory theory of the nature of the reaction and the complexes formed in solution has been established.

A New Deposit Of Fuller's Earth, Alfred N. Cook

Proceedings of the Iowa Academy of Science

A few months since a prospector brought me a specimen of earth of uncommon appearance from the Black Hills of South Dakota for analysis with the hope that it might be something of value. It proved to be Fuller's earth of exceptional quality and I considered the result of sufficient interest to be published. Below is given the result of the analysis of the specimen dried in the air for two years. Two other analyses from the literature available are given for the sake of comparison. The per cents of the constituents of a theoretically chemically pure hydrated aluminum silicate …

Notes On The Carboniferous Faunas Of Mississippi Valley In The Rocky Mountain Region, Charles R. Keyes

Proceedings of the Iowa Academy of Science

Recent critical and extensive comparative studies of the Carboniferous faunas of the Rocky Mountain region have disclosed some facts that are of great interest to those who have become familiar with the Paleozoic fossils of the Mississippi valley. The Carboniferous faunas of the Continental Interior have now been well understood for over half a century. The faunas of the same geological age from the vast region west of the great central valley of the continent have also been well made out, but for the most part by a group of paleontologists entirely different from that group which was most familiar …

Officers, Past Presidents, And Members, Iowa Academy Of Sciences

Proceedings of the Iowa Academy of Science

No abstract provided.

A Geological Situation In The Lava Flow, With Reference To The Vegetation, Harriet M. Clearman

Proceedings of the Iowa Academy of Science

This great lava flow extends over a great part of Idaho, Washington, and Oregon. The area covered is extensive, some 200,000 square miles. That this flow has considerable depth may be seen at Shoshone Falls, and at various places where the river has cut a gorge. That there were successive flows with intervals of rest between may also be seen by a river gorge, for in the walls are fossil roots and stumps. Further than this but little has been written concerning this wonderful field.

Program, Iowa State Normal School, Winter Term, 1902-03, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

Seventh Annual Session Of The Summer Term, 1903, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Normal School.

Proceedings Of The Eighteenth Annual Session Of The Iowa Academy Of Sciences: Staff & Committee Reports, H. W. Norris

Proceedings of the Iowa Academy of Science

No abstract provided.

The Animal Cell In The Light Of Recent Work, Gilbert L. Houser

Proceedings of the Iowa Academy of Science

With the discovery of the centrosome, microscopical work on the animal cell apparently reached its culmination. It was predicted that further study would yield little more than the details of larger facts already known. The last few years have marked the addition of just such details in even greater measure than was imagined; but it is also true that altogether unexpected contributions have been made from work along other than classic microscopical lines. Especially to be mentioned are: (1) the application to the cell of the data and the methods of physical chemistry; and (2) the extension of experimental biology …

A Contribution To Our Knowledge Of The Development Of Prunus Americana, R. Earle Buchanan

Proceedings of the Iowa Academy of Science

There is no field more promising of results and none that has received less attention until recently than the investigation of the more hidden life histories of our cultivated plants. The gross anatomy of these plants has long been studied. Later we learned of their relationships through a study of their grouping and classifications. Lastly, the microscope with all its world of technique has been brought to the study of the various plant structures. The best and most nearly perfect or ideal treatment of our cultivated plants can be attained only when we know all that is possible regarding their …

A Buried Peat Bed In Dodge Township, Union County, Iowa, T. E. Savage

Proceedings of the Iowa Academy of Science

Union County already occupies a notable place in the annals of the Pleistocene geology of our State. Near the towns of Thayer and Afton Junction are exposed the gravel beds which first furnished the basis for the separation of the drift of the pre-Kansan age from that of the Kansan, and for the establishment of the Aftonian interglacial interval The name of this latter age of American geology was taken from the town of Afton which is located not far from the above mentioned gravel exposures, in Union county.

Some Features In The Analysis Of Dolomite Rock, Nicholas Knight

Proceedings of the Iowa Academy of Science

The purpose of this work was to compare different methods of determining silica in dolomite, and also to ascertain the amount of magnesium oxalate that will precipitate with calcium oxalate in connection with the analysis of dolomite rock by different students. These rocks abound in Iowa and in many other portions of the United States. The specimens under examination were variable mixtures of calcium and magnesium carbonates, with silica, ferric oxide and aluminum oxide. All were obtained from the Mount Vernon quarry and belonged to the Niagara period of geologic history.

Periodical Literature In Iowa On The Subject Of Chemistry, W. S. Hendrixson

Proceedings of the Iowa Academy of Science

The following is a list of the chemical periodicals in the State of Iowa, with the extent of the files and the names of the libraries in which they may be found. The list is prepared and published for the information of chemists who may have occasion to refer to such periodicals in their work. So far as known the books of any file may be used for reference purposes in the libraries which contain them and under certain restrictions, in some cases, they may be taken out for purposes of reference. In some cases the books are in the …

Index

Proceedings of the Iowa Academy of Science

No abstract provided.

Ferdinand Reppert, B. Shimek

Proceedings of the Iowa Academy of Science

No abstract provided.

Title Page - Letter Of Transmittal, T. E. Savage

Proceedings of the Iowa Academy of Science

No abstract provided.

Presidential Address - Two Centuries Of North American Lichenology, Bruce Fink

Proceedings of the Iowa Academy of Science

Surely no apology is in order for offering here an address in which attention is directed for the short time to a limited field in one of the biological sciences. All men of science are interested to some extent in the history of the rise and progress of every phase of scientific inquiry, and even for the layman who may favor us with his presence this evening, it is hoped that the record of devotion, sacrifice and completion of valuable work will afford something of interest.

The Importance Of Vital Statistics In The Study Of Social Science, Gershom H. Hill

Proceedings of the Iowa Academy of Science

Social science is now studied in all colleges and universities. Professors who have qualified themselves by years of post-graduate work both at home and abroad show pupils how to study history in a topical manner. Statistics, ancient and modern, are compared. Large and well stocked libraries are in demand. Public documents, reports of State institutions, both charitable and penal, are examined. The data desired are compiled and used. Inter-society and inter-collegiate debates, upon popular questions, are frequently held. The most learned men available are asked to be present and serve as judges. In the study of science, theories are admissible …

The Furcula In The Collembola, J. E. Guthrie

Proceedings of the Iowa Academy of Science

The Collembola or "Spring-tails" comprise a very interesting order of wingless insects, usually associated with the order Thysanura, and frequently placed in that order. These little insects are common under bark and stones and among loose debris, wherever they can find dark, moist hiding places. As they range from less than 1 to only about 4 millimeters in length, and are usually very agile, we seldom notice them when collecting unless we are looking especially for them.

The So-Called Dorsotrachealis Branch Of The Seventh Cranial Nerve In Amphiuma, H. W. Norris

Proceedings of the Iowa Academy of Science

Fischer in his work on the Derotremes and Perennibranchs describes a peculiar branch of the seventh cranial nerve in Amphiuma, distributed, according to his statement, to the hyotrachealis muscle. Kingsley in his recent paper on the cranial nerves of Amphiuma agrees with Fischer that the nerve is one having no homologue in other Amphibians. According to him the nerve ends in the dorsotrachealis muscle. My own observations are so at variance with the views of these two writers that the following detailed account of the course of this extraordinary nerve is hereby given. Observations were made upon specimens of Amphiuma …

The Vagus And Anterior Spinal Nerves In Amphiuma, H. W. Norris

Proceedings of the Iowa Academy of Science

After the recent excellent description of the cranial nerves in Amphiuma by Kingsley it may seem hardly worthwhile to present any further account. But having the good fortune to possess some material in which the individual nerve trunks can be traced with great distinctness through the various plexuses the writer ventures to present the following brief account of the interrelationships of the vagus and anterior spinal nerves. The points wherein this paper is at variance with that of Kingsley are probably in most respects of not great importance, and possibly due to differences in the state of development of the …

Some Bacteriological Examinations Of Iowa Waters, L. H. Pammel, R. E. Buchanan, Edna L. King

Proceedings of the Iowa Academy of Science

A good supply of water is of prime importance for every community. We are more and more beginning to appreciate and to insist on the disposal of sewage and a proper and good supply of water. It is astonishing that epidemics of typhoid fever are so common. Especially so when we know that typhoid fever is a preventable disease in large measure. It is astonishing that it is so common a disease in countries where sanitary science has attained its greatest development.